This is the public reference pack shipped with HuLaHo. It combines authored engineering notes with selected primary-source summaries. It is not a live web encyclopedia. Private workspace documents, memories, examples and conversations are not published here.

Reasoning

10 notes: Observation and inference, Necessary and sufficient conditions, Unknown is not false and more.

Debugging

10 notes: Reproduce a failure, Find the first failing boundary, Browser and command-line differences and more.

Data

10 notes: Missing values and zero, Denominators, Weighted means and more.

Software

10 notes: Authentication and authorization, Idempotent operations, Transactions and more.

Planning

10 notes: State and goals, Critical path, Dependency cycles and more.

Security

10 notes: Least privilege, Secrets in logs, Recovery credentials and more.

SEO

10 notes: Crawlable links, JavaScript and initial HTML, Descriptive page metadata and more.

Learning

10 notes: Program synthesis, Ambiguous examples, Reserved validation example and more.

HuLaHo

8 notes: Deterministic default, Chat event stream, Memory and sources and more.

Mathematics

8 notes: Exact rational arithmetic, Floating-point arithmetic, Bayesian updating and more.

European Union

26 notes: European Parliament, European Council, Council of the European Union and more.

Sovereign design

6 notes: Sovereign AI in HuLaHo, Model-free default, Private and shared learning and more.

English

40 notes: English sentence order, Subject and verb agreement, Present simple and more.

Working product guides

In the workspace, ask knowledge: topic to retrieve a note. Use knowledge topics to list the catalogue. Generic references describe concepts; they should not be mistaken for facts about your own project.